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mirror of https://github.com/garraflavatra/go-fmp.git synced 2025-06-28 04:25:11 +00:00
This commit is contained in:
2025-06-14 15:19:36 +02:00
parent d9ffc3e573
commit b94fa28ba9
7 changed files with 49 additions and 65 deletions

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@ -21,6 +21,7 @@ const (
FMP_CHUNK_SIMPLE_KEY_VALUE FMP_CHUNK_SIMPLE_KEY_VALUE
FMP_CHUNK_LONG_KEY_VALUE FMP_CHUNK_LONG_KEY_VALUE
FMP_CHUNK_PATH_PUSH FMP_CHUNK_PATH_PUSH
FMP_CHUNK_PATH_PUSH_LONG
FMP_CHUNK_PATH_POP FMP_CHUNK_PATH_POP
FMP_CHUNK_NOOP FMP_CHUNK_NOOP
) )

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@ -6,7 +6,7 @@ import (
) )
func debug(str string, args ...interface{}) { func debug(str string, args ...interface{}) {
fmt.Printf(str+"\n", args...) // fmt.Printf(str+"\n", args...)
} }
func (f *FmpFile) ToDebugFile(fname string) { func (f *FmpFile) ToDebugFile(fname string) {

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@ -40,7 +40,6 @@ func OpenFile(path string) (*FmpFile, error) {
ctx.FileSize = uint(info.Size()) ctx.FileSize = uint(info.Size())
ctx.numSectors = uint64((ctx.FileSize / sectorSize) - 1) ctx.numSectors = uint64((ctx.FileSize / sectorSize) - 1)
ctx.Sectors = make([]*FmpSector, 0) ctx.Sectors = make([]*FmpSector, 0)
currentPath := make([]uint64, 0)
ctx.stream.Seek(2*sectorSize, io.SeekStart) ctx.stream.Seek(2*sectorSize, io.SeekStart)
for { for {
@ -55,7 +54,7 @@ func OpenFile(path string) (*FmpFile, error) {
ctx.Sectors = append(ctx.Sectors, sector) ctx.Sectors = append(ctx.Sectors, sector)
if sector.ID != 0 { if sector.ID != 0 {
err = sector.processChunks(ctx.Dictionary, &currentPath) err = sector.processChunks(ctx.Dictionary)
if err != nil { if err != nil {
return nil, err return nil, err
} }

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@ -2,6 +2,7 @@ package fmp
import ( import (
"encoding/hex" "encoding/hex"
"fmt"
"io" "io"
) )
@ -48,41 +49,48 @@ func (sect *FmpSector) readChunks() error {
return nil return nil
} }
func (sect *FmpSector) processChunks(dict *FmpDict, currentPath *[]uint64) error { func (sect *FmpSector) processChunks(dict *FmpDict) error {
err := sect.readChunks() err := sect.readChunks()
if err != nil { if err != nil {
return err return err
} }
currentPath := make([]uint64, 0)
for _, chunk := range sect.Chunks { for _, chunk := range sect.Chunks {
switch chunk.Type { switch chunk.Type {
case FMP_CHUNK_PATH_PUSH: case FMP_CHUNK_PATH_PUSH, FMP_CHUNK_PATH_PUSH_LONG:
*currentPath = append(*currentPath, uint64(chunk.Value[0])) currentPath = append(currentPath, parseVarUint64(chunk.Value))
s := ""
for _, ent := range currentPath {
s += fmt.Sprintf("%v. ", ent)
}
debug("path: %s", s)
case FMP_CHUNK_PATH_POP: case FMP_CHUNK_PATH_POP:
if len(*currentPath) > 0 { if len(currentPath) > 0 {
*currentPath = (*currentPath)[:len(*currentPath)-1] currentPath = (currentPath)[:len(currentPath)-1]
} }
case FMP_CHUNK_SIMPLE_DATA: case FMP_CHUNK_SIMPLE_DATA:
dict.set(*currentPath, chunk.Value) dict.SetValue(currentPath, chunk.Value)
case FMP_CHUNK_SEGMENTED_DATA: case FMP_CHUNK_SEGMENTED_DATA:
// Todo: take index into account // Todo: take index into account
dict.set( dict.SetValue(
*currentPath, currentPath,
append(dict.getValue(*currentPath), chunk.Value...), append(dict.GetValue(currentPath), chunk.Value...),
) )
case FMP_CHUNK_SIMPLE_KEY_VALUE: case FMP_CHUNK_SIMPLE_KEY_VALUE:
dict.set( dict.SetValue(
append(*currentPath, uint64(chunk.Key)), append(currentPath, uint64(chunk.Key)),
chunk.Value, chunk.Value,
) )
case FMP_CHUNK_LONG_KEY_VALUE: case FMP_CHUNK_LONG_KEY_VALUE:
dict.set( dict.SetValue(
append(*currentPath, uint64(chunk.Key)), // todo: ?? append(currentPath, uint64(chunk.Key)), // todo: ??
chunk.Value, chunk.Value,
) )
@ -235,7 +243,7 @@ func (sect *FmpSector) readChunk(payload []byte) (*FmpChunk, error) {
case 0x38: case 0x38:
valueLength := uint64(payload[1]) valueLength := uint64(payload[1])
chunk.Length = 2 + valueLength chunk.Length = 2 + valueLength
chunk.Type = FMP_CHUNK_PATH_PUSH chunk.Type = FMP_CHUNK_PATH_PUSH_LONG
chunk.Value = payload[2:chunk.Length] chunk.Value = payload[2:chunk.Length]
case 0x3D, 0x40: case 0x3D, 0x40:

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@ -2,46 +2,16 @@ package fmp
func (ctx *FmpFile) Tables() []*FmpTable { func (ctx *FmpFile) Tables() []*FmpTable {
tables := make([]*FmpTable, 0) tables := make([]*FmpTable, 0)
ent := ctx.Dictionary.GetEntry([]uint64{3, 16, 5})
for key, ent := range *ctx.Dictionary { for path, tableEnt := range *ent.Children {
if key != 3 { if path < 128 {
continue continue
} }
debug("Found a 3") name := decodeByteSeq(tableEnt.Children.GetValue([]uint64{16}))
table := &FmpTable{ID: path, Name: name}
for key, ent = range *ent.Children { tables = append(tables, table)
if key != 16 {
continue
}
debug("Found a 3.16")
for key, ent = range *ent.Children {
if key != 5 {
continue
}
debug("Found a 3.16.5")
for tablePath := range *ent.Children {
if key >= 128 {
continue
}
// Found a table!
debug("Found a table at 3.16.5.%d", tablePath)
}
}
}
} }
// metaDict := ctx.Dictionary.get([]uint64{4, 1, 7})
// if metaDict == nil {
// return tables
// }
// for _, meta := range *metaDict.Children {
// name := decodeByteSeq(meta.Children.get([]uint64{16}).Value)
// table := &FmpTable{Name: name}
// tables = append(tables, table)
// }
return tables return tables
} }

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@ -29,14 +29,16 @@ func TestTables(t *testing.T) {
} }
tables := f.Tables() tables := f.Tables()
if len(tables) != 1 || tables[0].Name != "Untitled" { expected := "WayDomains, WayProcesses, Untitled"
tablesString := "" tablesString := ""
for i, table := range tables { for i, table := range tables {
tablesString += table.Name tablesString += table.Name
if i < len(tables)-1 { if i < len(tables)-1 {
tablesString += ", " tablesString += ", "
}
} }
t.Errorf("expected tables to be 'Untitled', got '%s'", tablesString) }
if tablesString != expected {
t.Errorf("expected tables to be '%s', got '%s'", expected, tablesString)
} }
} }

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@ -47,10 +47,11 @@ type FmpDictEntry struct {
} }
type FmpTable struct { type FmpTable struct {
ID uint64
Name string Name string
} }
func (dict *FmpDict) get(path []uint64) *FmpDictEntry { func (dict *FmpDict) GetEntry(path []uint64) *FmpDictEntry {
for i, key := range path { for i, key := range path {
_, ok := (*dict)[key] _, ok := (*dict)[key]
if !ok { if !ok {
@ -61,20 +62,23 @@ func (dict *FmpDict) get(path []uint64) *FmpDictEntry {
return (*dict)[key] return (*dict)[key]
} else { } else {
dict = (*dict)[key].Children dict = (*dict)[key].Children
if dict == nil {
return nil
}
} }
} }
return nil return nil
} }
func (dict *FmpDict) getValue(path []uint64) []byte { func (dict *FmpDict) GetValue(path []uint64) []byte {
ent := dict.get(path) ent := dict.GetEntry(path)
if ent != nil { if ent != nil {
return ent.Value return ent.Value
} }
return nil return nil
} }
func (dict *FmpDict) set(path []uint64, value []byte) { func (dict *FmpDict) SetValue(path []uint64, value []byte) {
for i, key := range path { for i, key := range path {
_, ok := (*dict)[key] _, ok := (*dict)[key]
if !ok { if !ok {